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Sep 17, 2013
09/13
by
A. A. Schekochihin; S. C. Cowley; G. W. Hammett; J. L. Maron; J. C. McWilliams
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The growth and saturation of magnetic field in conducting turbulent media with large magnetic Prandtl numbers are investigated. This regime is very common in low-density hot astrophysical plasmas. During the early (kinematic) stage, weak magnetic fluctuations grow exponentially and concentrate at the resistive scale, which lies far below the hydrodynamic viscous scale. The evolution becomes nonlinear when the magnetic energy is comparable to the kinetic energy of the viscous-scale eddies. A...
Source: http://arxiv.org/abs/astro-ph/0207503v2
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11
Sep 15, 2018
09/18
by
Government of Chhattisgarh
texts
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Chhattisgarh Gazette Gazette Type: Extrardinary Gazette Number: 282 Date: 2002-10-30 Notification Number: 4719/18/2002 Department: आवास एवं पर्यावरण विभाग Notification Date: 2002-10-30 Subject: छत्तीसगढ़ नगर निगम पालिका अधिनियम,1956 जगदलपुर के क्षेत् रमे नगर पालिका निगम का गठन करता है।
Topic: Chhattisgarh Gazette
Topics: kbs, livetoday, live_day, 56k, vod
Forum continues its election coverage with candidates for California Attorney General.
Topics: KQED, Forum with Michael Krasny
Topics: KQED, Forum with Michael Krasny
Topics: koreanet-3, busan, newsplaza
Forum discusses Oakland Measure CC, which would make permanent the 'Strong Mayor' form of government approved by city voters four years ago.
Topics: KQED, Forum with Michael Krasny
Topics: KBS News, news930
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22
Mar 3, 2015
03/15
by
KPCC
audio
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San Fernando Valley Secession Debate; Steven Pinker
Topics: KPCC, 89.3 KPCC, AirTalk, Larry Mantle
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Sep 18, 2013
09/13
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Andrew Akeroyd; Abdesslam Arhrib
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We study the associated production of the $A^0$ neutral CP--odd Higgs boson with a neutral gauge boson $Z$ as well as single production of $A^0$ via $e^+e^- \to \nu_e {\bar\nu}_e A^0$ at the one loop level in the Minimal Supersymmetric Standard Model (MSSM). We show that the MSSM cross--section may be enhanced by light SUSY particles. Then we study the production processes $e^+e^-\to H^0_iZ$, $H^0_i\nu_e\bar \nu_e$ and $H^0_iH^0_j$ in the context of the MSSM with scalar-pseudoscalar mixing. In...
Source: http://arxiv.org/abs/hep-ph/0210424v1
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2.0
Jan 22, 2017
01/17
by
NPR
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Topic: npr talk of the nation
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2.0
movies
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109
109
Sep 18, 2013
09/13
by
Timothy H. Boyer
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By numerical calculation, the Planck spectrum with zero-point radiation is shown to satisfy a natural maximum-entropy principle whereas alternative choices of spectra do not. Specifically, if we consider a set of conducting-walled boxes, each with a partition placed at a different location in the box, so that across the collection of boxes the partitions are uniformly spaced across the volume, then the Planck spectrum correspond to that spectrum of random radiation (having constant energy kT...
Source: http://arxiv.org/abs/physics/0210129v1
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Sep 18, 2013
09/13
by
N. Kauer
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We explore the combination of deterministic and Monte Carlo methods to facilitate efficient automatic numerical computation of multidimensional integrals with singular integrands. Two adaptive algorithms are presented that employ recursion and are runtime and memory optimised, respectively. SINGINT, a C implementation of the algorithms, is introduced and its utilisation in the calculation of particle scattering amplitudes is exemplified.
Source: http://arxiv.org/abs/physics/0210127v1
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Sep 23, 2013
09/13
by
Thomas Hayes; Samuel Kutin; Dieter van Melkebeek
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We describe a quantum black-box network computing the majority of N bits with zero-sided error eps using only 2N/3 + O(sqrt{N (log log N + log 1/eps)}) queries: the algorithm returns the correct answer with probability at least 1 - eps, and "I don't know" otherwise. Our algorithm is given as a randomized "XOR decision tree" for which the number of queries on any input is strongly concentrated around a value of at most 2N/3. We provide a nearly matching lower bound of 2N/3 -...
Source: http://arxiv.org/abs/quant-ph/0109101v3
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48
Sep 20, 2013
09/13
by
Stephen D. Bartlett; Barry C. Sanders
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We identify a broad class of physical processes in an optical quantum circuit that can be efficiently simulated on a classical computer: this class includes unitary transformations, amplification, noise, and measurements. This simulatability result places powerful constraints on the capability to realize exponential quantum speedups as well as on inducing an optical nonlinear transformation via linear optics, photodetection-based measurement and classical feedforward of measurement results,...
Source: http://arxiv.org/abs/quant-ph/0204065v2
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Sep 18, 2013
09/13
by
V. F. Boldyshev; M. G. Shatnev
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Two approaches used in the description of the channeling radiation emitted from relativistic positrons are compared with each other. In the first (traditional) case, the probability of the process is proportional to a sum of absolute squares of the amplitudes of the transition between two states with definite transverse energy levels of the positrons traversing single crystals. In the second case, we begin with calculation of the sum of amplitudes for transition between states with different...
Source: http://arxiv.org/abs/quant-ph/0210203v1
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Sep 18, 2013
09/13
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Volker Bach; Frederic Klopp; Heribert Zenk
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We study the photoelectric effect on the example of a simplified model of an atom with a single bound state, coupled to the quantized electromagnetic field. For this model, we show that Einstein's prediction for the photoelectric effect is qualitatively and quantitatively correct to leading order in the coupling parameter. More specifically, considering the ionization of the atom by an incident photon cloud consisting of $N$ photons, we prove that the total ionized charge is additive in the $N$...
Source: http://arxiv.org/abs/math-ph/0210051v1
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Sep 19, 2013
09/13
by
Miloslav Znojil
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Witten's supersymmetric quantum mechanics may incorporate potentials with strong singularities after their appropriate regularization. This was proposed by Das and Pernice [Nucl. Phys. B 561 (1999) 357 and arXiv: hep-th/0207112]. We suggest that one of the most natural recipes of this type is generated by an infinitesimal complex shift of coordinates. The necessary regularization is then mediated by a non-Hermitian, PT symmetric intermediate Hamiltonian.
Source: http://arxiv.org/abs/hep-th/0209262v2
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Sep 21, 2013
09/13
by
Véronique Bernard; Thomas R. Hemmert; Ulf-G. Meißner
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We study the chiral loop corrections to the generalized Gerasimov-Drell-Hearn sum rule of the nucleon for finite photon virtuality in the framework of a Lorentz-invariant formulation of baryon chiral perturbation theory. We perform a complete one-loop calculation and obtain significant differences to previously found results based on the heavy baryon approach for the proton and neutron spin-dependent forward Compton amplitudes.
Source: http://arxiv.org/abs/hep-ph/0203167v2
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Feb 9, 2013
02/13
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Tegan and Sara
etree
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Tegan And Sara Roseland Theatre Portland, OR October 30, 2002 1. Monday Monday Monday 2. Underwater 3. Talking 4. Living Room 5. Talking 6. Divided 7. Not Tonight 8. Want To Be Bad 9. Talking 10. And Darling 11. Talking 12. Empty In Between 13. I Hear Noises 14. Don't Confess 15. I Ran 01. 01 Monday Monday Monday FLAC 01. 01 Monday Monday Monday FLAC 02. 02 Underwater FLAC 02. 02 Underwater FLAC 03. 03 Talking FLAC 03. 03 Talking FLAC 04. 04 Living Room FLAC 04. 04 Living Room FLAC 05. 05...
Topic: Tegan And Sara Live 2002
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Aug 11, 2010
08/10
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NASA
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Earth views taken by the Expedition Five Crew aboard the International Space Station ISS. Views of Mt. Etna's spectacular eruption with details of the eruption plume and smoke from fires.
Topic: What -- Earth
9
9.0
Sep 15, 2018
09/18
by
Government of Chhattisgarh
texts
eye 9
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Chhattisgarh Gazette Gazette Type: Extrardinary Gazette Number: 296 Date: 2002-10-30 Notification Number: एफ-2-13/गृह/2001 Department: गृह विभाग Notification Date: 2002-10-30 Subject: म.प्र.पुनर्गठन अधिनियम,2000 राज्य सरकार,द्वारा निम्नलिखित आदेश का गठन करती है।
Topic: Chhattisgarh Gazette
8,160
8.2K
Jun 19, 2007
06/07
by
Ryan Adams
etree
eye 8,160
favorite 4
comment 1
Ryan Adams Roseland Theater Portland, OR 30th October 2002 CD1 01 Intro > Oh My Sweet Carolina 02 Tomorrow 03 Chat 04 Sweet 'Lil Gal (23rd/1st) 05 Bartering Lines 06 The Fools We Are As Men 07 Sylvia Plath 08 To Be Young (Is To Be Sad, Is To Be High) 09 My Winding Wheel 10 The Rescue Blues 11 When The Stars Go Blue 12 Pissing On A Cowboy 13 Oh My Sweet Chocolate Cookie ('Cookie Monster') 14 Dear Chicago 15 Chat 16 You Will Always Be The Same CD2 01 Call Me On Your Way Back Home 02 The...
favoritefavoritefavoritefavorite ( 1 reviews )
Topic: Ryan Adams
Source: SBD->DAT
Topic: npr morning edition
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142
May 28, 2011
05/11
by
Six Mile Road
etree
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Six Mile Road 10-30-2002 Silver Dollar Spearfish, SD. Source: SBD CD1: 01. Intro 02. Salt Creek 03. Rocky Road Blues 04. 8 More Miles To Louiseville 05. Southern Flavor 06. Muddy Water 07. Big Sandy 08. Pig In A Pen 09. High On A Mountain 10. Colleen Malone 11. Blackberry Blossom 12. Sally Goodin' 13. Evening 14. Gold Rush 15. Blue Night 16. Tobacco Patch 17. Rawhide Line-up: Jake Jackson - Guitar Dan Cross - Mandolin Trappor Masson - Banjo Emilee Masson - Bass *note: Emilee's first show with...
Source: SBD
Topics: Radio Free Europe, Radio Liberty, afghan, ch17
Topics: msnbc.com, NBC, MSNBC, CNBC, NBC Today Show, NBC Nightly News, Dateline
Topics: GAME BREAK(ゲームブレイク), gamebreak
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13
Jan 18, 2015
01/15
by
Mount Wilson Observatory
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This image includes data from the synoptic program at the 150-Foot Solar Tower of the Mt. Wilson Observatory. The Mt. Wilson 150-Foot Solar Tower is operated by UCLA, with funding from NASA, ONR and NSF, under agreement with the Mt. Wilson Institute.
Topics: solar, activity, sun, drawing, wilson
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31
Sep 18, 2013
09/13
by
T. Fang; K. R. Sembach; C. R. Canizares
texts
eye 31
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With the Chandra X-ray Telescope we have detected a zero-redshift OVII He-alpha absorption line along the sight line toward 3C 273. This line detection is highly significant, with a signal-to-noise ratio (S/N) of 6.4. We explore two models, which associate this line with (1) the intragroup gas in the Local Group, and (2) the hot halo gas in the vicinity of our Milky Way. In the first model, we find that for a standard beta-model of the gas distribution in the Local Group, the temperature is...
Source: http://arxiv.org/abs/astro-ph/0210666v1
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41
Sep 18, 2013
09/13
by
Paul Maragakis; Ryan Lee Barnett; Efthimios Kaxiras; Marcus Elstner; Thomas Frauenheim
texts
eye 41
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Minuscule molecular forces can transform DNA into a structure that is elongated by more than half its original length. We demonstrate that this pronounced conformational transition is of relevance to ongoing experimental and theoretical efforts to characterize the conducting properties of DNA wires. We present quantum mechanical calculations for acidic, dry, poly(CG).poly(CG) DNA which has undergone elongation of up to 90 % relative to its natural length, along with a method for visualizing the...
Source: http://arxiv.org/abs/cond-mat/0210663v1
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56
Sep 18, 2013
09/13
by
Javier Junquera; Magali Zimmer; Pablo Ordejon; Philippe Ghosez
texts
eye 56
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We report first-principles density-functional pseudopotential calculations on the atomic structures, electronic properties, and band offsets of BaO/BaTiO$_3$ and SrO/SrTiO$_3$ nanosized heterojunctions grown on top of a silicon substrate. The density of states at the junction does not reveal any electronic induced interface states. A dominant perovskite character is found at the interface layer. The tunability of the band offset with the strain conditions imposed by the substrate is studied....
Source: http://arxiv.org/abs/cond-mat/0210666v1
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49
Sep 18, 2013
09/13
by
V. A. De Lorenci; R. Klippert; Yu. N. Obukhov
texts
eye 49
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We study the optical paths of the light rays propagating inside a nonlinear moving dielectric media. For the rapidly moving dielectrics we show the existence of a distinguished surface which resembles, as far as the light propagation is concerned, the event horizon of a black hole. Our analysis clarifies the physical conditions under which electromagnetic analogues of the gravitational black holes can eventually be obtained in laboratory.
Source: http://arxiv.org/abs/gr-qc/0210104v1
2
2.0
Sep 6, 2018
09/18
by
Radio Prague
audio
eye 2
favorite 0
comment 0
47
47
Sep 20, 2013
09/13
by
Chin-Lung Wang
texts
eye 47
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We give a survey of the background and recent development on the $K$-equivalence relation among birational manifolds. After a brief historical sketch of birational geometry, we define the $K$-partial ordering and $K$-equivalence in a birational class and discuss geometric situations that lead to these notions. One application to the filling-in problem for threefolds is given. We discuss the motivic aspect of $K$-equivalence relation. We believe that $K$-equivalent manifolds have the same Chow...
Source: http://arxiv.org/abs/math/0204160v3
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47
Sep 18, 2013
09/13
by
Priska Jahnke; Ivo Radloff
texts
eye 47
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The consequences of the splitting of higher jet sequences of vector bundles on a compact complex (Kaehler) manifold are studied, proving an infinitesimal convers to a result of I.Biswas.
Source: http://arxiv.org/abs/math/0210454v1
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35
Sep 18, 2013
09/13
by
Ruedi Suter
texts
eye 35
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Let g be a complex simple Lie algebra and b a fixed Borel subalgebra of g. We shall describe the abelian ideals of b in a uniform way, that is, independent of the classification of complex simple Lie algebras.
Source: http://arxiv.org/abs/math/0210463v1
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34
Sep 18, 2013
09/13
by
Werner Muller
texts
eye 34
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In this paper we study the absolute convergence of the spectral side of the Arthur trace formula. We reduce the problem of the absolute convergence to a problem about local components of automorphic representations. The latter problem can be settled for GL(n).
Source: http://arxiv.org/abs/math/0210464v1
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40
Sep 18, 2013
09/13
by
M. Monelli; G. Andreuzzi; G. Bono; R. Buonanno; F. Caputo; M. Castellani; V. Castellani; C. E. Corsi; M. Dall' Ora; G. Marconi; L. Pulone; V. Ripepi; J. Storm; V. Testa
texts
eye 40
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We present accurate multiwavelength UBVI time series data of the LMC cluster Reticulum. Data cover a time interval of ~ 6 yr and have been collected with SUSI1/2 and SOFI at NTT/ESO. For each band we collected approximately 30 short/long exposures and the total exposure times range from roughly 3500 (U, B), 6000s (V) to 8300s (I). The observing strategy and data reduction (DAOPHOTII/ALLFRAME) allowed us to reach a photometry accuracy of 0.02 magnitude from the tip of the Red Giant Branch well...
Source: http://arxiv.org/abs/astro-ph/0210650v1
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35
Sep 18, 2013
09/13
by
I. N. Mishustin; M. Hanauske; A. Bhattacharyya; L. M. Satarov; H. Stoecker; W. Greiner
texts
eye 35
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We study properties of compact stars with the deconfinement phase transition in their interiors. The equation of state of cold baryon-rich matter is constructed by combining a relativistic mean-field model for the hadronic phase and the MIT Bag model for the deconfined phase. In a narrow parameter range two sequences of compact stars (twin stars), which differ by the size of the quark core, have been found. We demonstrate the possibility of a rapid transition between the twin stars with the...
Source: http://arxiv.org/abs/hep-ph/0210422v1
Topics: Event, Cleveland Museum of Art, Press Releases
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51
Sep 19, 2013
09/13
by
Hyun-Tak Kim; H. Minami; W. Schmidbauer; J. W. Hodby; A. Iyo; F. Iga; H. Uwe
texts
eye 51
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The paramagnetic Meissner effect (PME) in the field cooled susceptibility has been observed in superconducting single crystals of Ba_{1-x}K_xBiO_3 using magnetometers of Quantum-Design Co.. The PME is similar to that observed in cuprates and Nb superconductors. For the Ba_{0.63}K_{0.37}BiO_3 crystal, the PME is observed in cooling process under the field up to 750 Oe. The PME was not found in the virgin-charged superconducting magnet. The PME is found in a superconductor with trapped flux and...
Source: http://arxiv.org/abs/cond-mat/0206432v2
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71
Jul 6, 2011
07/11
by
NASA -- NASA image created by Jesse Allen, Earth Observatory, using data provided courtesy of the rapidfire.sci.gsfc.nasa.gov/ MODIS Rapid Response team.
image
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In this satellite image, what might be mistaken for smoke from a forest fire is actually a wide plume of ice crystals -- in other words, a cirrus cloud. This particular cloud seems to defy the conventional description of as thin, wispy, often curly clouds. Cirrus generally form at high altitudes (near 20,000 feet, or about 6 kilometers), where temperatures are cold and water vapor is usually scarcer than at lower altitudes. The plume captured in this image from the Moderate Resolution Imaging...
Topics: What -- Terra, What -- AIRS, What -- Earth, Where -- Nevada, Where -- Illinois
Source: http://earthobservatory.nasa.gov/IOTD/view.php?id=6984
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7.0
movies
eye 7
favorite 0
comment 0
68
68
Jul 22, 2011
07/11
by
NASA -- NASA Image Of The Day
image
eye 68
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Sicily's Mt.Etna is erupting for the fourth straight day, and small earthquakes continue to rumble in the region, causing the evacuation of at least 1,000 people according to news reports. Reports indicate that lava flows are slowing, and no communities appear to be in danger, although tourist facilities farther up the mountain experienced some losses. This true-color image from the modis.gsfc.nasa.gov Moderate Resolution Imaging Spectroradiometer (MODIS) on the aqua.nasa.gov Aqua satellite...
Topics: What -- Aqua, Where -- Mediterranean Sea, Where -- Goddard Space Flight Center (GSFC)
Source: http://earthobservatory.nasa.gov/NaturalHazards/view.php?id=10382
7
7.0
Sep 15, 2018
09/18
by
Government of Chhattisgarh
texts
eye 7
favorite 0
comment 0
Chhattisgarh Gazette Gazette Type: Extrardinary Gazette Number: 297 Date: 2002-10-30 Notification Number: 557/690/वि/नि/चार/2002 Department: वित्त विभाग Notification Date: 2002-10-29 Subject: म.प्र.पुनर्गठन अधिनियम,2000 राज्य सरकार,द्वारा निम्नलिखित आदेश का गठन करती है।
Topic: Chhattisgarh Gazette
Note :
Topics: californiarevealed, Newspaper--Local editions, California--Newspapers, Local history, Newspapers,...
Source: Microfilm: 16 Pages of 16 (11 1/2 x 22 3/4)
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161
audio
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20,000 Say Goodbye to Senator Paul Wellstone Walter F. Mondale said today that he seeks to replace the late Democratic Sen. Paul Wellstone on the ballot in Minnesota. Mondale wrote to the Democratic Party, submitting his name, and he will likely be nominated when the Democratic partyof Minnesota meets later tonight.Mondale's request comes the day after more than 20,000 people came to Williams Arena in Minneapolis last night to say good-bye to Senator Paul Wellstone, his wife Sheila, his...
Topics: NATO, bill clinton, bush, california, democratic party, iraq, israel, kennedy, palestine, rights,...
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32
Sep 18, 2013
09/13
by
J. R. Peterson; J. G. Jernigan; S. M. Kahn
texts
eye 32
favorite 0
comment 0
We discuss multivariate Monte Carlo methods appropriate for X-ray dispersive spectrometers. Dispersive spectrometers have many advantages for high resolution spectroscopy in the X-ray band. Analysis of data from these instruments is complicated by the fact that the instrument response functions are multi-dimensional and relatively few X-ray photons are detected from astrophysical sources. Monte Carlo methods are the natural solution to these challenges, but techniques for their use are not well...
Source: http://arxiv.org/abs/astro-ph/0210664v1
